{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2016-4911",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
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                    "vendor_name": "n/a"
                }
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        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
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                "description": [
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                        "lang": "eng",
                        "value": "n/a"
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    "references": {
        "reference_data": [
            {
                "name": "https://bugs.launchpad.net/keystone/+bug/1577558",
                "refsource": "CONFIRM",
                "url": "https://bugs.launchpad.net/keystone/+bug/1577558"
            },
            {
                "name": "[oss-security] 20160517 CVE request for vulnerability in OpenStack Keystone",
                "refsource": "MLIST",
                "url": "http://www.openwall.com/lists/oss-security/2016/05/17/10"
            },
            {
                "name": "90728",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/90728"
            },
            {
                "name": "https://security.openstack.org/ossa/OSSA-2016-008.html",
                "refsource": "CONFIRM",
                "url": "https://security.openstack.org/ossa/OSSA-2016-008.html"
            },
            {
                "name": "https://review.openstack.org/#/c/311886/",
                "refsource": "CONFIRM",
                "url": "https://review.openstack.org/#/c/311886/"
            },
            {
                "name": "[oss-security] 20160517 Re: CVE request for vulnerability in OpenStack Keystone",
                "refsource": "MLIST",
                "url": "http://www.openwall.com/lists/oss-security/2016/05/17/11"
            }
        ]
    }
}